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Altera_Forum's avatar
Altera_Forum
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12 years ago

How to export FIFO_OUT_CSR outside QSYS?

Hi,

I have some Fifos inside Qsys system and I would like to export the FIFO_OUT_CSR to logic outside Qsys, using a Conduit Interface (PIO Parallel IO). However, the OUT_CSR is a Avalon Slave Interface and the Conduit Interface is also a Avalon Slave, so I can not connect these two interfaces directly.

Please, someone could help with this? I don't know if there is some component that I could put between this two Slaves Interfaces.

If someone have another ideia, please share

Thanks for helping

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    you'll need to export the MM Slave interface directly and drive it with an MM Master state machine, or maybe add a NIOS, read from the CSR and write to the PIO

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    Hi thepancake,

    Thanks for your helping. Just one question, can I do this state machine directly inside Qsys?

    Sorry for the basic questions, but I am an beginner.

    Thanks again
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    directly, no. but you can code up a state machine in Verilog or VHDL, add an MM master interface, and create a custom component out of it. then you can work completely in Qsys